Home / 20,167.47-30,251.21-9,061.20

Finding the Fourth Proportional to 20,167.47, 30,251.21 and 9,061.20

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Solution

The fourth proportional to 20,167.47, 30,251.21 and 9,061.20 is: 13,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.47 : 30,251.21 = 9,061.20 : x
  2. Step 2: Convert to fraction form
    20,167.47/30,251.21 = 9,061.20/x
  3. Step 3: Cross multiply
    20,167.47x = 30,251.21 × 9,061.20
  4. Step 4: Simplify right side
    20,167.47x = 274,112,218.75
  5. Step 5: Solve for x
    x = 274,112,218.75/20,167.47
  6. Step 6: Final answer
    x = 13,591.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.